cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync/*
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * Copyright © 1998 Keith Packard
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync *
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * Permission to use, copy, modify, distribute, and sell this software and its
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * documentation for any purpose is hereby granted without fee, provided that
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * the above copyright notice appear in all copies and that both that
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * copyright notice and this permission notice appear in supporting
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * documentation, and that the name of Keith Packard not be used in
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * advertising or publicity pertaining to distribution of the software without
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * specific, written prior permission. Keith Packard makes no
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * representations about the suitability of this software for any purpose. It
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * is provided "as is" without express or implied warranty.
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync *
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * PERFORMANCE OF THIS SOFTWARE.
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#ifndef _FBROP_H_
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define _FBROP_H_
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsynctypedef struct _mergeRopBits {
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync FbBits ca1, cx1, ca2, cx2;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync} FbMergeRopRec, *FbMergeRopPtr;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern _X_EXPORT const FbMergeRopRec FbMergeRopBits[16];
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDeclareMergeRop() FbBits _ca1, _cx1, _ca2, _cx2;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDeclarePrebuiltMergeRop() FbBits _cca, _ccx;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbInitializeMergeRop(alu,pm) {\
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync const FbMergeRopRec *_bits; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync _bits = &FbMergeRopBits[alu]; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync _ca1 = _bits->ca1 & pm; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync _cx1 = _bits->cx1 | ~pm; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync _ca2 = _bits->ca2 & pm; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync _cx2 = _bits->cx2 & pm; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync}
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDestInvarientRop(alu,pm) ((pm) == FB_ALLONES && \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync (((alu) >> 1 & 5) == ((alu) & 5)))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDestInvarientMergeRop() (_ca1 == 0 && _cx1 == 0)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync/* AND has higher precedence than XOR */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDoMergeRop(src, dst) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync (((dst) & (((src) & _ca1) ^ _cx1)) ^ (((src) & _ca2) ^ _cx2))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDoDestInvarientMergeRop(src) (((src) & _ca2) ^ _cx2)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDoMaskMergeRop(src, dst, mask) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync (((dst) & ((((src) & _ca1) ^ _cx1) | ~(mask))) ^ ((((src) & _ca2) ^ _cx2) & (mask)))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDoLeftMaskByteMergeRop(dst, src, lb, l) { \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync FbBits __xor = ((src) & _ca2) ^ _cx2; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync FbDoLeftMaskByteRRop(dst,lb,l,((src) & _ca1) ^ _cx1,__xor); \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync}
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDoRightMaskByteMergeRop(dst, src, rb, r) { \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync FbBits __xor = ((src) & _ca2) ^ _cx2; \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync FbDoRightMaskByteRRop(dst,rb,r,((src) & _ca1) ^ _cx1,__xor); \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync}
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDoRRop(dst, and, xor) (((dst) & (and)) ^ (xor))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDoMaskRRop(dst, and, xor, mask) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync (((dst) & ((and) | ~(mask))) ^ (xor & mask))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync/*
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * Take a single bit (0 or 1) and generate a full mask
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define fbFillFromBit(b,t) (~((t) ((b) & 1)-1))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define fbXorT(rop,fg,pm,t) ((((fg) & fbFillFromBit((rop) >> 1,t)) | \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync (~(fg) & fbFillFromBit((rop) >> 3,t))) & (pm))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define fbAndT(rop,fg,pm,t) ((((fg) & fbFillFromBit (rop ^ (rop>>1),t)) | \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync (~(fg) & fbFillFromBit((rop>>2) ^ (rop>>3),t))) | \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync ~(pm))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define fbXor(rop,fg,pm) fbXorT(rop,fg,pm,FbBits)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define fbAnd(rop,fg,pm) fbAndT(rop,fg,pm,FbBits)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define fbXorStip(rop,fg,pm) fbXorT(rop,fg,pm,FbStip)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define fbAndStip(rop,fg,pm) fbAndT(rop,fg,pm,FbStip)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync/*
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * Stippling operations;
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern _X_EXPORT const FbBits fbStipple16Bits[256]; /* half of table */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbStipple16Bits(b) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync (fbStipple16Bits[(b)&0xff] | fbStipple16Bits[(b) >> 8] << FB_HALFUNIT)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern _X_EXPORT const FbBits fbStipple8Bits[256];
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern _X_EXPORT const FbBits fbStipple4Bits[16];
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern _X_EXPORT const FbBits fbStipple2Bits[4];
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern _X_EXPORT const FbBits fbStipple1Bits[2];
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsyncextern _X_EXPORT const FbBits *const fbStippleTable[];
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbStippleRRop(dst, b, fa, fx, ba, bx) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync (FbDoRRop(dst, fa, fx) & b) | (FbDoRRop(dst, ba, bx) & ~b)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbStippleRRopMask(dst, b, fa, fx, ba, bx, m) \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync (FbDoMaskRRop(dst, fa, fx, m) & (b)) | (FbDoMaskRRop(dst, ba, bx, m) & ~(b))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDoLeftMaskByteStippleRRop(dst, b, fa, fx, ba, bx, lb, l) { \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync FbBits __xor = ((fx) & (b)) | ((bx) & ~(b)); \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync FbDoLeftMaskByteRRop(dst, lb, l, ((fa) & (b)) | ((ba) & ~(b)), __xor); \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync}
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbDoRightMaskByteStippleRRop(dst, b, fa, fx, ba, bx, rb, r) { \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync FbBits __xor = ((fx) & (b)) | ((bx) & ~(b)); \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync FbDoRightMaskByteRRop(dst, rb, r, ((fa) & (b)) | ((ba) & ~(b)), __xor); \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync}
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbOpaqueStipple(b, fg, bg) (((fg) & (b)) | ((bg) & ~(b)))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync/*
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * Compute rop for using tile code for 1-bit dest stipples; modifies
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync * existing rop to flip depending on pixel values
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync */
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbStipple1RopPick(alu,b) (((alu) >> (2 - (((b) & 1) << 1))) & 3)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbOpaqueStipple1Rop(alu,fg,bg) (FbStipple1RopPick(alu,fg) | \
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync (FbStipple1RopPick(alu,bg) << 2))
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#define FbStipple1Rop(alu,fg) (FbStipple1RopPick(alu,fg) | 4)
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync
cabde247f900dcf6e58d009bbdd15099c028c6fcvboxsync#endif